漳州新城大厦基坑降水工程实例分析

Analysis on Dewatering Project of Foundation Pit for Xincheng Mansion in Zhangzhou

漳州新城大厦降水场地位于漳州盆地地下热水分布区边缘地带 ,地下水主要为松散岩类孔隙水 ,水位埋藏浅 ,水温高 ,基坑涌水量大 ,水文地质条件极其复杂 ,为了确保地下室在无地下水条件下施工 ,采取了深孔、大井径、短井距、大泵量的合理降水措施 ,取得了良好的降水效果 。

Xincheng Mansion is located at the edge of the distribution area with underground hot water in Zhang Zhou Basin.The groundwater is the type of loose rock pore water with the characteristics of shallow water level,high temperature and large inflow rate in the foundation pit.The hydrogeological conditions are very complicated.In order to keep the dry condition for the construction of the basement,the appropriate dewatering measures such as deep holes,large diameter of boreholes,short distance between wells and high pumping power have been taken.It gets the satisfactory effect for the construction of the basement.